Net Income per Share

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Net income

Net Income Per Share

Basic net income per share is computed by dividing net income for the period by the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed by dividing net income for the period by the weighted average number of shares of common stock and potentially dilutive common stock outstanding during the period. The dilutive effect of outstanding options and restricted stock is reflected in diluted net income per share by application of the treasury stock method. The calculation of diluted net income per share excludes all anti-dilutive shares of common stock. The following table sets forth the computation of basic and diluted net income per share for the periods indicated:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
	(In millions, except per share amounts)
Numerator:
Net income	$	689	$	597	$	2,006	$	1,859
Denominator:
Weighted average shares of common stock - basic	1,295		1,292		1,296		1,291
Dilutive effect of equity incentive plans	15		22		18		20
Weighted average shares of common stock - diluted	1,310		1,314		1,314		1,311
Net income per share:
Basic	$	0.53	$	0.46	$	1.55	$	1.44
Diluted	$	0.53	$	0.45	$	1.53	$	1.42
Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	2		3		2		6